Peanut Butter Pie

9" chocolate crumb crust (like the graham cracker kind, but chocolate)

Filling:
1 (8 oz) package cream cheese, softened
1 C creamy peanut butter
1 C sugar
1 T butter, softened
1 tsp vanilla extract
1 C heavy cream, whipped
grated chocolate candy bar or chocolate cookie crumbs, optional

In a mixing bowl, beat cream cheese--then add peanut butter, sugar, butter and vanilla and beat until smooth. Fold in whipped cream. Gently spoon into crust. Garnish with grated chocolate candy bar or cookie crumbs if desired. Refrigerate.